Zinc Oxide

Base Information

• Chemical Name: Zinc Oxide
• CAS No.: 1314-13-2
• Deprecated CAS: 185461-95-4,56592-00-8,57206-86-7,78590-82-6,8011-84-5,8047-36-7,8047-69-6,8050-42-8,8051-03-4,143477-34-3,1035159-71-7,1079737-05-5,1158650-40-8,1328870-15-0,1352121-28-8,1404365-15-6,768390-32-5,1227055-55-1,1434578-69-4,1449007-65-1,1613512-66-5,1621460-93-2,1629869-94-8,1799390-27-4,1834590-43-0,1928718-93-7,2082751-40-2,2111100-94-6,1641546-65-7,2251116-56-8,2257421-96-6,2377780-57-7,2455522-12-8,2530009-82-4,2567725-07-7,2606843-55-2,91315-44-5,2704650-42-8
• Molecular Formula: ZnO
• Molecular Weight: 81.37
• Hs Code.: 2817.00
• European Community (EC) Number: 215-222-5,617-101-6,939-819-1
• ICSC Number: 0208
• UN Number: 3077,1516
• Wikipedia: Zinc(II) oxide,Zinc oxide,Zinc_oxide,Zincite
• Wikidata: Q190077
• NCI Thesaurus Code: C949
• RXCUI: 11423
• Mol file: 1314-13-2.mol

Synonyms:Lassar Paste;Lassar's Paste;Lassars Paste;Oxide, Zinc;Paste, Lassar's;Zinc Oxide

Chemical Property of Zinc Oxide

Chemical Property:

• Appearance/Colour: white powder
• Melting Point: 1975 °C
• Refractive Index: 2.008~2.029
• Boiling Point: 2360oC
• Flash Point: 27℃
• PSA: 17.07000
• Density: 5.606 g/cm³
• LogP: -0.12130
• Storage Temp.: Store at +5°C to +30°C.
• Solubility.: 0.0016g/l insoluble
• Water Solubility.: 1.6 mg/L (29 ºC)
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 0
• Exact Mass: 79.924056
• Heavy Atom Count: 2
• Complexity: 2
• Transport DOT Label: Class 9

Purity/Quality:

99% ^*data from raw suppliers

Zinc oxide ^*data from reagent suppliers

Safty Information:

• Pictogram(s): N,Xn
• Hazard Codes: N,Xn,F
• Statements: 50/53-20-43-36/38-20/21/22-67-66-10-11
• Safety Statements: 60-61-7/9-36/37-26-16

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Metals -> Metals, Inorganic Compounds
• Canonical SMILES: O=[Zn]
• Recent EU Clinical Trials: Efficacy of topical application of zinc oxide ointment compared with zinc oxide paste and tocoferol, for treating diaper dermatitis in infant: a randomized, controlled, triple blind study
• Recent NIPH Clinical Trials: Treatment for intoractable perianal dermatitis by CMC Zinc oxide ointment
• Inhalation Risk: A harmful concentration of airborne particles can be reached quickly , especially for fume.
• Effects of Short Term Exposure: May cause mechanical irritation to the eyes and respiratory tract. The fume is irritating to the respiratory tract. Inhalation of fumes may cause metal fume fever.
• Historical Development: Zinc white is a white pigment that emerged in the 19th century alongside technological advancements in the paint industry. It was first proposed as a white pigment in 1782 by Louis-Bernard Guyton de Morveau. Initially suggested as a replacement for toxic lead white, zinc white was accepted as a pigment in 1834.; Zinc white was first proposed as a white pigment in 1782 by Louis-Bernard Guyton de Morveau. Initially suggested as a replacement for toxic lead white, zinc white was accepted as a pigment in 1834. Winsor & Newton introduced a calcine zinc oxide called "Chinese White" in 1834, which became popular as a watercolor pigment. John Ruskin promoted the use of zinc white in his book "The Elements of Drawing" in 1857.
• Chemical Properties and Reaction: Zinc white, also known as zinc oxide (ZnO), is a II-VI semiconductor used as an artist's pigment for about 150 years.; It is a highly reactive pigment, prone to reacting with free carboxylic acids in oil binding media to form zinc soaps.; Commercial formulations may contain zinc stearate as an additive, which can affect the formation of zinc carboxylates.
• Applications: Zinc white was favored by Mondrian for its brightness compared to lead white, although it has lower covering power and can yield a more brittle paint, especially when used in pure form. For example, Zinc white played a significant role in the paintings of Dutch artist Piet Mondrian. Mondrian's use of zinc white is noted to have started around 1917, and he experimented with different types of white paints, including lead white and titanium dioxide white.; Zinc white is a cool, semi-opaque, color-fast white pigment commonly used in oil paints for tinting. It is often labeled as Mixing White or Transparent White and is also added to Titanium White to improve its handling qualities.
• Production Process: Zinc white is made from zinc oxide, which is produced from zinc ores or industrial byproducts. The production involves reducing zinc-containing materials at high temperatures with a carbon-containing agent like anthracite, resulting in the formation of zinc oxide.

Refernces

Promotion effect of Ce or Zn oxides for improving furfuryl alcohol yield in the furfural hydrogenation using inexpensive Cu-based catalysts

10.1016/j.mcat.2018.06.001

This study investigated the use of cerium or zinc oxides as promoters to improve the yield of furfuryl alcohol in the hydrogenation of furfural using an inexpensive copper-based catalyst supported on a mixed layer of cerolite/magnesium-montmorillonite. It was found that high copper loadings (15-30 wt.% copper) maintained high furfural conversions above 80 mol% after 5 h at 210 °C, while the addition of cerium oxide (CeO) or zinc oxide (ZnO) as promoters, while reducing furfural conversion, significantly improved the selectivity of furfuryl alcohol, reaching a maximum yield of above 80% after 5 h at 190 °C. The effects of copper content and the presence of promoters on the catalytic performance were also investigated, with the results indicating that moderate copper loadings favored the formation of 2-methylfuran, while higher loadings and the addition of cerium oxide (CeO) or zinc oxide (ZnO) improved the selectivity of furfuryl alcohol. The study concluded that the addition of CeO2 or ZnO changes the electron density of the active phase, thereby improving the selectivity of furfuryl alcohol and reducing the deactivation due to carbonaceous deposition.